Availability:

One;
Professor Edward Travers, who was once possessed by it, plans to return
to the Det-Sen Monastery to clear his mind of the Intelligence once and
for all. But he never makes it. The Vault want him, but an old friend
is waiting in the wings to help.

Two; Owain Vine, who carries
the seed of the Intelligence within, is in Japan on a pilgrimage to
cleanse himself of the taint he feels in his soul. Soon a happy reunion
takes place, and Owain learns that past friendships are not what they
seemed.

Three; Brigadier Alistair Lethbridge-Stewart, who finds
himself haunted by the spectre of his brother, James, who refuses to
stay dead.